Shock absorber



B. G. VON ROEDER AND E. C. OATES.

' sHocK ABsoRBER.

APPLICATION FILED JAN. 1 7, 192|.

1,437,371. Patented Nov. 28, 1922.

[7 l VVENTHS EC ArEs w/TNESSES Patented Nov. 28, lQETQi.

-sNr OFFIC ranno ernennen vea Roaman AND `soenna oanowar earns, or HUSTON, TEXAS.

SHOCK assonanza.

Application filed January 17, 1921. Serial yNo. 437,852.

Tocll whomtmay.oon-cera.'` y

Be it known. that we,LBENNo v G.' von Roanne and EUGENE C; OaTnaboth citizens ofthe Unitedftateal and residents of l-lous ton, vin the county vofllarrisfand State/.oit

Texas, have .invented a new and Improved Shock Absorber, ol which the following is a ful-l, clear, and exact description. l l, This invention relates to improvements in shock absorbers, an .object otfthe invention being .to provide a device ot this character whichl is primarily intended for use as aconnecting and cushioning medium 'betweenthe upper' and lower springs' `commonly eniployed under automobile bodies, orbetween the upper spring and the axle, or between ay spring 'and the lirameot an automobile. A further Objectis to provide a Shock abH sorber which will be practical ink construc- VIl() tion; strong, durable yand eliicient in use, and one which may be readily substituted :tor the ordinary links now employed in this connec* tion... lV ith these and other objects in view7 the invention consistsin certain novel features ot construction and combina-tions and arrangements ol parts as will be morefully hereinafter described and pointed outiu the claims ln the accompanying drawings: f

Figure 1 is a View in side elevation oi our ,improved shock absorber.

Figure 2 is a top plan view thereof.

Figure 3 is a view in section on the line 3 3 oi? Figure 1.

Referring in detail to the drawings our improved shock absorber comprises a pair of rocker members which are in the form of platesfbent at their intermediate portions to form substantially three quarter circular bearing sleeves 2. At one end the plates are bent inwardly towards each other as indicated by the reference numeral 3 and at their other end the plates are bifurcated indicated at a.. The arms 6 of the bifurcated portions are adapted to st raddle the ends of the upper and lower leaf smings and 5 respectively of .an automobile to re place the spring links and are vformed v'with aligned eyes 7 receiving boltsy 8 to'secure the shock absorberto the springs.L The bolts ordinarily used in tastening the springs and links may be employed in this connection.

connection may be emplo-y'fed,4 such as the greasecup 8 commonly used for lubricating the link and spring joint.'

1 fulcrum bar 9 is `formed with rounded ends` 10 located in the bearing sleeves Zand on 'each side of the bar 9a' spiral spring 11 is `confined between the rocker members 1.

lVe have illustrated one practical means of securing the springs between the rocker members in which `we employr square headed threaded bolts 12 having their heads located vwithin 'the springsy and their endsr projecting through the plates. Gaskets 13 are interposed between 'the heads of the bolts andthe ends of the-"springs and nutsr 1land lock washers 15 around the threaded ends of the bolts r.serve to firmly clamp the ends ofthe springs between the gaskets 13 andthe plates or rocker members.

By reference to Figure 3 .is will be seen 'that the rounded ends l()` of the fulcrum bar 9 are transversely bored as shown at 16.

These rounded ends are internally screwv cant which will leak through` perorations 2O in the walls oi the bores land thoroughly luhricate the bearing surfaces, which are protected from yan outward accumulation ot dust or grit by leather shields 20 (Fig. 1) Secured by any convenient means to the fulcrum bar near its middle. The entire device may be enclosed in any suitable casing (not shown) so that it will be .effectively protected from the weather.

lt will be readily seen that with this construction compression o one spring automatically causes tension in the otherdue to the double fulcrum of th'e members and the springs lautomatically stabilize each other and 4torni a highly eiicient shock absorbing member between the springs of an automobile, also that the oscillating motion of the :tulcrum bar corresponds to the link motion ot the ordinary elliptical springsk when under compression or rebound7 and that the extent ofthe oscilla-tionv is dependent upon the spaces between the rounded bearing ends oi' the iulcrum bar'and the open side of the sleeve bearings. device is dependent upon the amount of such space. w

Various slight changes and alterations might be made in the general form of the parts described without departing; from our invention., hence we do not wish to limit ourselves to the precise details set forth, but shall consider ourselves at liberty to make such slight changes and alterations as 'airly falll within the spirit and scope of the appended claims. v

lWe 'claim l l. A deviceof the character stated, con prising` a pair offnorinally parallel rocker plates having'recesses adjacent their central portions Storming substantially three quarter circular bearingy sleeves?` a ulcrum bar, rounded ends on the `fulcrum bar fitting within said sleeved` spiral spring interposed between thevroclrer plates on each side ofthe fulcruin bar and secured to the plates.

,2. device olf the character stated, cornprieine a` pair of :florinallp7 parallel rocker plates having recesses in their central portions' forming` substantially three quarter circular bearing sleeves, a ifulcrurn bar, rounded ends on the fulcruin bariitting within said sleeves, a spiral spring` interposed between the ,rocker plates on each side oit' the ulcrum and secured to kthe platea the rounded ends oit said ulcruiu har beingbored and internally7 screw threaded, secur ing; devices secured into said bores and preventingl independent lateral movement of the ulcruin bar and rocker plates 3. A device of the character stateds comprisinga pair o2 normally parallel rocker plates having recesses adjacent their cen- The collapsability of the tral portions forming substantially three quarter circular bearing sleeves, a fulcrum bar, rounded ends on the fulcrum bar fitting within said sleeves, a spiral spring interposed between the rocker plates7 a spiral spring` interposed between the rocker plates on each side of the Jfulcrum bar and secured kto the plates, one end of each of said plates being turned inwardly and the other end of each of said plates being` bifurcatecl,'tlie arms of said bifurcated portions adapted to straddle the ends of automobile springs and means for securing said springs within the biifurcated portions. H n

l, A device of the character stated, cornprisinga pair of rocker plates curved at their intermediate portions to provide substantially three quarter circular bearing suri'aces, a fulcrurn bar interposed between the plates includingrounded ends itting the bearing` surfaces, iiexible dust guards secured at their intermediate portions to opposite sides of the fulcrum bar and wipingly engageable with the plates.

5. A device oit' the character stated, coinprising a pair of rocker plates curved at their intermediate portions to provide substantially three `quarter circular bearing` surfaces, a fulcrum bar interposed between the plates including rounded ends fitting' the bearing' surfaces, said rounded ends of the fulcrum bar formed to provide reservoirs for lubricant7 securing devices closing the ends of the reservoirs, and said rounded rends having passages therein between the reservoirs and the bearing` surfaces'.

BENNO GILBERT voN ROEDERV, EUGENE CAROVVAY GATES. 

